68424915

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20641}}^1$

素因数の和:20679

約数の個数: 32

約数和(自身を含む): 124842816

約数和(自身を除く): 56417901

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 20641, 61923, 103205, 268333, 309615, 350897, 804999, 1052691, 1341665, 1754485, 4024995, 4561661, 5263455, 13684983, 22808305, 68424915]

約数ペア:

[(1, 68424915), (3, 22808305), (5, 13684983), (13, 5263455), (15, 4561661), (17, 4024995), (39, 1754485), (51, 1341665), (65, 1052691), (85, 804999), (195, 350897), (221, 309615), (255, 268333), (663, 103205), (1105, 61923), (3315, 20641)]